Head coach Mike Riley and Oregon State have signed three junior college defensive prospects during the early period, according to a statement on the school's official website. The most recent signing is from ESPN JC 100 defensive tackle Edwin Delva (Miami/Antelope Valley College), who made if official on Christmas.

Snow College defensive tackle Siale Hautau has pledged to continue his career in the Pac-12 for Oregon State, multiple sources report. He graduated from Skyline High School (Salt Lake City) in 2007 before attending Weber State as a walk-on.